35S-1SS7-B000000NB

Model 135 Rev B Low Temperature Shutoff (Pneumatic); Stainless Steel Head And Thermal Element; Standard 1/2" NPT Male Insertion Connection; Stainless Steel Internal Trim, Fluorosilicone (FK) Seals, Stainless Steel Spring Washers, Invar Rod; Setpoint Calibration,-40 Deg F Full Open; Opt-56: Cleaned For Non-Oxygen Gas Service Per Cashco Specification S-1542